Predicted to enable several functions, including guanyl-nucleotide exchange factor activity; small GTPase binding activity; and ubiquitin protein ligase activity. Predicted to be involved in several processes, including circadian regulation of gene expression; positive regulation of protein ubiquitination; and protein ubiquitination. Predicted to act upstream of or within several processes, including axonogenesis; negative regulation of protein catabolic process; and regulation of cytoskeleton organization. Predicted to be located in axon; microtubule cytoskeleton; and nucleoplasm. Predicted to be active in nucleus. Orthologous to human MYCBP2 (MYC binding protein 2). [provided by Alliance of Genome Resources, Apr 2022]