Enables calmodulin binding activity and calmodulin-dependent protein phosphatase activity. Involved in several processes, including cellular response to glucose stimulus; negative regulation of insulin secretion; and response to amphetamine. Located in cytosol. Part of calcineurin complex. Is active in synapse. Colocalizes with slit diaphragm. Biomarker of kidney disease. Human ortholog(s) of this gene implicated in developmental and epileptic encephalopathy 91. Orthologous to human PPP3CA (protein phosphatase 3 catalytic subunit alpha). [provided by Alliance of Genome Resources, Apr 2022]