Predicted to enable cytoskeletal protein binding activity and phosphatase binding activity. Predicted to be involved in protein localization to plasma membrane. Predicted to act upstream of or within several processes, including adult walking behavior; neuron development; and regulation of heart contraction. Located in axon initial segment; cytoplasm; and node of Ranvier. Orthologous to human SPTBN4 (spectrin beta, non-erythrocytic 4). [provided by Alliance of Genome Resources, Apr 2022]