Is predicted to encode a protein with the following domains: Rab GTPase-activating protein 1; PH-like domain superfamily; Rab-GTPase-TBC domain superfamily; Kinesin-like; PTB/PI domain; Rab-GTPase-TBC domain; and Kinesin protein. Is an ortholog of C. elegans tbc-11. In C. elegans, tbc-11 is involved in RNA localization and cuticle development.