I believe in them.
Tbh you would have to ask someone else. I say this because most ATR practices come from understanding Earth's Nature. Odinani, Vodou / Voodoo, Ifa, Santeria, Palo, Lucumi, Candomble and Hoodooo(not a religion) are examples of this. But you do have different cultures like Dogon, who have they're own spiritual system, have the "Nommo". I could be wrong but I think they're creatures that came from a star then went into earth waters then on land. Would that be considered extraterrestrials? Iono.