Predicted to enable RNA binding activity; identical protein binding activity; and transcription coregulator activity. Located in nucleus. Is expressed in several structures, including branchial arch; central nervous system; genitourinary system; hemolymphoid system gland; and sensory organ. Human ortholog(s) of this gene implicated in Ewing sarcoma. Orthologous to human EWSR1 (EWS RNA binding protein 1). [provided by Alliance of Genome Resources, Apr 2022]