May play a role in acrosome formation in spermatogenesis and in fertilization.
Subcellular locations: Cytoplasmic vesicle, Secretory vesicle, Acrosome membrane
Exclusively localized on a peripheral part of acrosome membrane (Golgi phase), localized on the equatorial segment of the acrosome (maturation phase).
Expressed in gastric tissues. Down-regulated in gastric cancer.