Enables protein serine/threonine kinase activity. Predicted to be involved in several processes, including regulation of insulin secretion involved in cellular response to glucose stimulus; regulation of transcription involved in G1/S transition of mitotic cell cycle; and secretion by cell. Located in synaptic vesicle. Orthologous to human CDK16 (cyclin dependent kinase 16). [provided by Alliance of Genome Resources, Apr 2022]