Enables delayed rectifier potassium channel activity; transmembrane transporter binding activity; and voltage-gated ion channel activity involved in regulation of presynaptic membrane potential. Involved in several processes, including cellular response to nitric oxide; globus pallidus development; and protein complex oligomerization. Located in several cellular components, including axon; basolateral plasma membrane; and neuronal cell body membrane. Is integral component of plasma membrane. Part of voltage-gated potassium channel complex. Orthologous to human KCNC2 (potassium voltage-gated channel subfamily C member 2). [provided by Alliance of Genome Resources, Apr 2022]