Enables chromatin binding activity. Acts upstream of or within several processes, including insulin receptor signaling pathway; negative regulation of proteasomal ubiquitin-dependent protein catabolic process; and positive regulation of transcription by RNA polymerase II. Located in XY body and nucleus. Part of SWI/SNF complex; nBAF complex; and npBAF complex. Is expressed in several structures, including central nervous system; early conceptus; genitourinary system; hemolymphoid system gland; and sensory organ. Orthologous to human SMARCC1 (SWI/SNF related, matrix associated, actin dependent regulator of chromatin subfamily c member 1). [provided by Alliance of Genome Resources, Apr 2022]