Set Custom Animation Frame Or Time?

Is it possible to set the time of a custom animation on an entity. I tried http://wiki.garrysmod.com/page/Entity/SetAnimTime but it seems to have no effect on it, it just runs the animation once and does not loop or adjust with that.

-EDIT-

Used http://wiki.garrysmod.com/page/Entity/SetCycle instead, sorry for pointless thread.