Predicted to enable choline-phosphate cytidylyltransferase activity. Involved in protein autophosphorylation. Part of phosphorylase kinase complex. Used to study hypothyroidism. Human ortholog(s) of this gene implicated in glycogen storage disease and glycogen storage disease IXd. Orthologous to human PHKA1 (phosphorylase kinase regulatory subunit alpha 1). [provided by Alliance of Genome Resources, Apr 2022]