Predicted to enable GDP-dissociation inhibitor activity. Predicted to contribute to GTPase activator activity. Involved in several processes, including cellular response to leptomycin B; positive regulation of neuron projection development; and response to calcium ion. Located in axon cytoplasm and nucleus. Biomarker of myocardial infarction and sciatic neuropathy. Orthologous to human RANBP1 (RAN binding protein 1). [provided by Alliance of Genome Resources, Apr 2022]