Automated description from the Alliance of Genome Resources (Release 7.0.0)
Enables voltage-gated calcium channel activity involved in regulation of presynaptic cytosolic calcium levels and voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential. A structural constituent of presynaptic active zone. Involved in regulation of calcium-dependent activation of synaptic vesicle fusion and regulation of presynaptic membrane potential. Is active in calyx of Held; glutamatergic synapse; and presynaptic active zone cytoplasmic component. Orthologous to human RIMBP2 (RIMS binding protein 2).