only members of the orcs can, and they have to be accepted as a student by a shaman, so like effectively yes but there has been cases where there've been non-orc shamans
What Space said, the character just needs to conform to Orcish identity for the most part. To become a shaman you don't need to be an orc, you can be of any race. It's just more difficult. But if you show interest, and can work your way up to become an honorary non-orc orc. You can become one.
