Predicted to enable aldo-keto reductase (NADP) activity; potassium channel regulator activity; and transmembrane transporter binding activity. Predicted to be involved in regulation of potassium ion transmembrane transport. Predicted to act upstream of or within ion transport and regulation of ion transmembrane transport. Predicted to be located in cytoplasm. Predicted to be integral component of membrane. Predicted to be part of voltage-gated potassium channel complex. Is expressed in central nervous system; eye; heart; intestine; and male reproductive gland or organ. Orthologous to human KCNAB3 (potassium voltage-gated channel subfamily A regulatory beta subunit 3). [provided by Alliance of Genome Resources, Apr 2022]