Involved in endosome to plasma membrane protein transport and glucose import in response to insulin stimulus. Acts upstream of or within vesicle fusion to plasma membrane. Located in cytoplasmic vesicle membrane; perinuclear region of cytoplasm; and plasma membrane. Is expressed in dorsal root ganglion; lung; trigeminal ganglion; and white fat. Orthologous to human TRARG1 (trafficking regulator of GLUT4 (SLC2A4) 1). [provided by Alliance of Genome Resources, Apr 2022]