Predicted to enable cyclin-dependent protein serine/threonine kinase regulator activity and kinase activity. Predicted to contribute to RNA polymerase II general transcription initiation factor activity. Predicted to be involved in several processes, including positive regulation of meiotic cell cycle process involved in oocyte maturation; protein stabilization; and regulation of cyclin-dependent protein serine/threonine kinase activity. Predicted to be located in cytoplasm; germinal vesicle; and nucleoplasm. Predicted to be part of nucleus. Predicted to be active in nucleus. Biomarker of transient cerebral ischemia. Orthologous to human CCNH (cyclin H). [provided by Alliance of Genome Resources, Apr 2022]