Board Thread:Theories and Speculation/@comment-26636534-20150921160743/@comment-26537507-20150924142916

Yes. The minimum requirement needed to perform Izanagi is to have a Sharingan, most probably a fully matured one. Therefore as long as you can activate a Sharingan, you can activate Izanagi. Theoretically, Kakashi might have been able to activate Izanagi, since he had a Sharingan but Nagato, who only had the Rinnegan wouldn't be able to at all.