Predicted to enable protein tag and ubiquitin protein ligase binding activity. Acts upstream of or within protein localization and regulation of transcription by RNA polymerase II. Located in nucleus. Is expressed in several structures, including branchial arch; central nervous system; genitourinary system; peripheral nervous system ganglion; and sensory organ. Orthologous to human NEDD8 (NEDD8 ubiquitin like modifier). [provided by Alliance of Genome Resources, Apr 2022]