Catalyzes the formation of the signaling molecule cAMP (PubMed:9874775). May function as sensor that mediates responses to changes in cellular bicarbonate and CO(2) levels (By similarity). Has a critical role in mammalian spermatogenesis by producing the cAMP which regulates cAMP-responsive nuclear factors indispensable for sperm maturation in the epididymis. Induces capacitation, the maturational process that sperm undergo prior to fertilization (By similarity). Involved in ciliary beat regulation (By similarity). {By
SimilarityUniProtKB:Q8C0T9, By
SimilarityUniProtKB:Q96PN6, Experimental EvidencePubMed:9874775}.