diff --git a/expr/builtins/builtins.go b/expr/builtins/builtins.go
index c85bb0a..c4acde6 100644
--- a/expr/builtins/builtins.go
+++ b/expr/builtins/builtins.go
@@ -141,6 +141,12 @@ func LoadAllBuiltins() {
 	})
 }
 
+// GetFunc gets a function from the global registry if it exists.
+func GetFunc(name string) (expr.Func, bool) {
+	LoadAllBuiltins() // This is behind a sync.Once
+	return expr.FuncGet(name)
+}
+
 // uuid generates a new uuid
 //
 //    uuid() =>  "...."
diff --git a/expr/funcs.go b/expr/funcs.go
index 5102b4f..77f589b 100644
--- a/expr/funcs.go
+++ b/expr/funcs.go
@@ -84,3 +84,8 @@ func (m *FuncRegistry) FuncGet(name string) (Func, bool) {
 func FuncAdd(name string, fn CustomFunc) {
 	funcReg.Add(name, fn)
 }
+
+// FuncGet gets a function from the global registry if it exists.
+func FuncGet(name string) (Func, bool) {
+	return funcReg.FuncGet(name)
+}