May be involved sperm-egg plasma membrane adhesion and fusion during fertilization . Exhibits bacteriolytic activity in vitro against Micrococcus luteus and Staphylococcus aureus . Shows weak bacteriolytic activity against Gram-positive bacteria at physiological pH . Bacteriolytic activity is pH-dependent, with a maximum at around pH 5.6 .
Secreted . Cell surface . Cell projection, cilium, flagellum . Detected on the postacrosomal membrane of mature spermatozoa (PubMed:28182716). .
Expressed in testis, epididymis and spermatozoa (at protein level) (PubMed:16014814, PubMed:28182716). Expressed in late-stage spermatocytes and round spermatids (PubMed:28182716).
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