Is an ortholog of human CACNB1 (calcium voltage-gated channel auxiliary subunit beta 1) and CACNB4 (calcium voltage-gated channel auxiliary subunit beta 4). Is predicted to have high voltage-gated calcium channel activity. Is involved in positive regulation of locomotion\; regulation of calcium ion transport\; and striated muscle contraction involved in embryonic body morphogenesis. Localizes to the presynaptic active zone. Is expressed in the muscle cell. Human ortholog(s) of this gene are implicated in Brugada syndrome 4.