Predicted to enable cyclin-dependent protein serine/threonine kinase activity. Acts upstream of or within several processes, including chordate embryonic development; embryonic organ development; and negative regulation of smoothened signaling pathway involved in dorsal/ventral neural tube patterning. Predicted to be located in nucleoplasm. Predicted to be active in nucleus. Is expressed in thymus primordium. Orthologous to human CDK20 (cyclin dependent kinase 20). [provided by Alliance of Genome Resources, Apr 2022]