As a component of the coat protein complex II (COPII), may function in vesicle budding and cargo export from the endoplasmic reticulum.
Subcellular locations: Cytoplasm, Cytoplasmic vesicle, COPII-coated vesicle membrane, Endoplasmic reticulum membrane
Ubiquitously expressed at low levels with specific expression in thymus and testis. Expressed in testis by Sertoli cells, Leydig cells and spermatogonia and in cerebellum more prominently by Purkinje and granular cells (at protein level).