Does Animated Weapon Ritual actually exist?

Hey, I'm a pretty new player currently in a campaign as a Tremere. My storyteller has been pretty lax with some things, and I've only recently learnt myself that rituals have more rules than the wiki page describes and have been going through some of the ones Ive been using and making sure I have the correct rules for them.

One in particular that at this point my character is near entirely built around is Animated Weapon. A level 4 ritual that allows me to control a weapon with my will. It's apparently part of the Clan Tremere book.

I cannot for the life of me find any actual full description for this ritual and how it's supposed to work anywhere, and I don't have the Clan Tremere book to check there. We've thus far just been having it work once I take the weapon out of it's bindings, but this doesn't make sense compared to similar weapon enchantment rituals.

Does this ritual really exist? Have I been playing using someone's fan fiction ritual? Does anyone know the actual rules for this one?

Thanks in advance guys, I'm really lost on this one haha