Is predicted to encode a protein with the following domains: Rab-binding domain (RBD); Rab-GTPase-TBC domain; Rab-GTPase-TBC domain superfamily; RUN domain; Small G protein signalling modulator 1/2, Rab-binding domain; and RUN domain superfamily. Is an ortholog of C. elegans
tbc-8. In C. elegans,
tbc-8 is involved in dense core granule maturation.