Function
Has antibacterial activity against Gram-positive bacterium S.pneumoniae Serotype 14. Is also active against Gram-negative bacteria M.catarrhalis 1857, and non-typeable H.influenzae strains 86-028NP and 1128. Has antifungal activity against C.albicans. May have a role in maintaining sterility in the middle ear (PubMed:14996845). May act as a ligand for C-C chemokine receptor CCR6. Positively regulates the sperm motility and bactericidal activity in a CCR6-dependent manner. Binds to CCR6 and triggers Ca2+ mobilization in the sperm which is important for its motility (By similarity).