Enables voltage-gated chloride channel activity. Involved in chloride transport. Located in apical plasma membrane; inhibitory synapse; and synaptic vesicle. Is integral component of membrane. Is active in glutamatergic synapse. Is integral component of postsynaptic membrane. Orthologous to human CLCN3 (chloride voltage-gated channel 3). [provided by Alliance of Genome Resources, Apr 2022]