Predicted to enable several functions, including identical protein binding activity; protein C-terminus binding activity; and single-stranded RNA binding activity. Predicted to be involved in several processes, including learning or memory; negative regulation of transcription by RNA polymerase II; and social behavior. Predicted to act upstream of or within several processes, including negative regulation of insulin-like growth factor receptor signaling pathway; positive regulation of glial cell proliferation; and visual learning. Predicted to be located in cytosol; nuclear inclusion body; and nuclear lumen. Predicted to be part of protein-containing complex. Predicted to be active in nucleus. Human ortholog(s) of this gene implicated in spinocerebellar ataxia type 1. Orthologous to human ATXN1 (ataxin 1). [provided by Alliance of Genome Resources, Apr 2022]