Enables PDZ domain binding activity; ankyrin binding activity; and high voltage-gated calcium channel activity. Involved in several processes, including cellular response to amyloid-beta; positive regulation of CREB transcription factor activity; and positive regulation of transport. Located in several cellular components, including apical plasma membrane; dendrite membrane; and sarcolemma. Biomarker of sciatic neuropathy. Human ortholog(s) of this gene implicated in type 2 diabetes mellitus. Orthologous to human CACNA1D (calcium voltage-gated channel subunit alpha1 D). [provided by Alliance of Genome Resources, Apr 2022]