Predicted to enable cyclin-dependent protein serine/threonine kinase activator activity. Acts upstream of or within flagellated sperm motility; regulation of protein kinase activity; and spermatogenesis. Located in plasma membrane. Is expressed in several structures, including genitourinary system; gut; liver; mammary gland; and spleen. Orthologous to human CCNYL1 (cyclin Y like 1). [provided by Alliance of Genome Resources, Apr 2022]