diff --git a/lib/Doctrine/DBAL/Driver/PDOSqlite/Driver.php b/lib/Doctrine/DBAL/Driver/PDOSqlite/Driver.php
index f83637535..cee851e80 100644
--- a/lib/Doctrine/DBAL/Driver/PDOSqlite/Driver.php
+++ b/lib/Doctrine/DBAL/Driver/PDOSqlite/Driver.php
@@ -28,6 +28,14 @@ namespace Doctrine\DBAL\Driver\PDOSqlite;
  */
 class Driver implements \Doctrine\DBAL\Driver
 {
+    /**
+     * @var array
+     */
+    protected $_userDefinedFunctions = array(
+        'sqrt' => array('callback' => array('Doctrine\DBAL\Platforms\SqlitePlatform', 'udfSqrt'), 'numArgs' => 1),
+        'mod'  => array('callback' => array('Doctrine\DBAL\Platforms\SqlitePlatform', 'udfMod'), 'numArgs' => 2),
+    );
+
     /**
      * Tries to establish a database connection to SQLite.
      *
@@ -39,12 +47,24 @@ class Driver implements \Doctrine\DBAL\Driver
      */
     public function connect(array $params, $username = null, $password = null, array $driverOptions = array())
     {
-        return new \Doctrine\DBAL\Driver\PDOConnection(
+        if (isset($driverOptions['userDefinedFunctions'])) {
+            $this->_userDefinedFunctions = array_merge(
+                $this->_userDefinedFunctions, $driverOptions['userDefinedFunctions']);
+            unset($driverOptions['userDefinedFunctions']);
+        }
+
+        $pdo = new \Doctrine\DBAL\Driver\PDOConnection(
             $this->_constructPdoDsn($params),
             $username,
             $password,
             $driverOptions
         );
+
+        foreach ($this->_userDefinedFunctions AS $fn => $data) {
+            $pdo->sqliteCreateFunction($fn, $data['callback'], $data['numArgs']);
+        }
+
+        return $pdo;
     }
 
     /**
diff --git a/lib/Doctrine/DBAL/Platforms/SqlitePlatform.php b/lib/Doctrine/DBAL/Platforms/SqlitePlatform.php
index 9ab6a0f4e..4dcef06e3 100644
--- a/lib/Doctrine/DBAL/Platforms/SqlitePlatform.php
+++ b/lib/Doctrine/DBAL/Platforms/SqlitePlatform.php
@@ -384,4 +384,23 @@ class SqlitePlatform extends AbstractPlatform
     {
         return 'DELETE FROM '.$tableName;
     }
+
+    /**
+     * User-defined function for Sqlite that is used with PDO::sqliteCreateFunction()
+     *
+     * @param  int|float $value
+     * @return float
+     */
+    static public function udfSqrt($value)
+    {
+        return sqrt($value);
+    }
+
+    /**
+     * User-defined function for Sqlite that implements MOD(a, b)
+     */
+    static public function udfMod($a, $b)
+    {
+        return ($a % $b);
+    }
 }
diff --git a/tests/Doctrine/Tests/ORM/Functional/QueryDqlFunctionTest.php b/tests/Doctrine/Tests/ORM/Functional/QueryDqlFunctionTest.php
index 2b2a4cfae..ad0f9ecae 100644
--- a/tests/Doctrine/Tests/ORM/Functional/QueryDqlFunctionTest.php
+++ b/tests/Doctrine/Tests/ORM/Functional/QueryDqlFunctionTest.php
@@ -125,8 +125,6 @@ class QueryDqlFunctionTest extends \Doctrine\Tests\OrmFunctionalTestCase
 
     public function testFunctionMod()
     {
-        $this->markTestSkipped('MOD does not exist on SqLite');
-
         $result = $this->_em->createQuery("SELECT m, MOD(m.salary, 3500) AS amod FROM Doctrine\Tests\Models\Company\CompanyManager m")
                          ->getArrayResult();
 
@@ -139,8 +137,6 @@ class QueryDqlFunctionTest extends \Doctrine\Tests\OrmFunctionalTestCase
 
     public function testFunctionSqrt()
     {
-        $this->markTestSkipped('SQRT does not exist on SqLite');
-
         $result = $this->_em->createQuery("SELECT m, SQRT(m.salary) AS sqrtsalary FROM Doctrine\Tests\Models\Company\CompanyManager m")
                          ->getArrayResult();