I wouldn't, as you only share part of your character's racial/ethnic identity.

It is possible to be #ownvoices in some aspects but not others (e.g., a PoC autistic person writing a white autistic character, or vice versa, in which case the #ownvoices aspects should be stated specifically), but I would consider a character's race/ethnicity as a whole.

E.g., I would claim #ownvoices for a Zuni protagonist, but I wouldn't for a Black/Zuni protagonist, because I'm not Black.