Predicted to enable cyclin-dependent protein serine/threonine kinase regulator activity. Involved in response to xenobiotic stimulus. Predicted to be located in nucleolus. Predicted to be part of cyclin A2-CDK2 complex. Predicted to be active in cytoplasm and nucleus. Human ortholog(s) of this gene implicated in primary ciliary dyskinesia 29. Orthologous to human CCNO (cyclin O). [provided by Alliance of Genome Resources, Apr 2022]