diff --git a/pkg/sql/sqlerrors/errors.go b/pkg/sql/sqlerrors/errors.go
index 7605b7b77894..21b98bdb1b17 100644
--- a/pkg/sql/sqlerrors/errors.go
+++ b/pkg/sql/sqlerrors/errors.go
@@ -160,12 +160,6 @@ func NewUndefinedTypeError(name tree.NodeFormatter) error {
 	return pgerror.Newf(pgcode.UndefinedObject, "type %q does not exist", tree.ErrString(name))
 }
 
-// NewUndefinedFunctionError creates an error that represents a missing user
-// defined function.
-func NewUndefinedFunctionError(fn string) error {
-	return pgerror.Newf(pgcode.UndefinedFunction, "function %q does not exist", fn)
-}
-
 // NewUndefinedRelationError creates an error that represents a missing database table or view.
 func NewUndefinedRelationError(name tree.NodeFormatter) error {
 	return pgerror.Newf(pgcode.UndefinedTable,