Enables several functions, including calcium ion binding activity; protein N-terminus binding activity; and transmembrane transporter binding activity. Involved in positive regulation of action potential. Located in dendrite; neuronal cell body; and plasma membrane. Part of potassium channel complex. Orthologous to human KCNIP1 (potassium voltage-gated channel interacting protein 1). [provided by Alliance of Genome Resources, Apr 2022]