Enables several functions, including ATP binding activity; calmodulin binding activity; and phosphorylase kinase activity. Involved in glycogen metabolic process and protein phosphorylation. Part of phosphorylase kinase complex. Used to study glycogen storage disease. Human ortholog(s) of this gene implicated in glycogen storage disease; glycogen storage disease IXc; and liver cirrhosis. Orthologous to human PHKG2 (phosphorylase kinase catalytic subunit gamma 2). [provided by Alliance of Genome Resources, Apr 2022]