Enables voltage-gated calcium channel activity. Acts upstream of or within calcium ion transmembrane transport and sarcoplasmic reticulum calcium ion transport. Predicted to be located in plasma membrane. Predicted to be integral component of membrane. Predicted to be part of L-type voltage-gated calcium channel complex. Is expressed in brain; heart; retina; and spinal cord. Human ortholog(s) of this gene implicated in malignant hyperthermia. Orthologous to human CACNG1 (calcium voltage-gated channel auxiliary subunit gamma 1). [provided by Alliance of Genome Resources, Apr 2022]