Predicted to enable identical protein binding activity; proline-rich region binding activity; and protein C-terminus binding activity. Located in Golgi apparatus. Is integral component of membrane. Is expressed in several structures, including alimentary system; genitourinary system; hemolymphoid system gland; integumental system; and nervous system. Orthologous to human RABAC1 (Rab acceptor 1). [provided by Alliance of Genome Resources, Apr 2022]