May be involved sperm-egg plasma membrane adhesion and fusion during fertilization (PubMed:28182716). Exhibits bacteriolytic activity in vitro against Micrococcus luteus and Staphylococcus aureus (PubMed:24013621, PubMed:28182716). Shows weak bacteriolytic activity against Gram-positive bacteria at physiological pH (PubMed:28182716). Bacteriolytic activity is pH-dependent, with a maximum at around pH 5.6 (PubMed:28182716). {ECO:0000269|PubMed:24013621, ECO:0000269|PubMed:28182716}. This is the function of LYZL6 (lysozyme like 6, ENSG00000275722).