Predicted to enable RNA binding activity; epidermal growth factor receptor binding activity; and protein C-terminus binding activity. Acts upstream of or within several processes, including homeostasis of number of cells; neuromuscular process; and neuron differentiation. Located in perinuclear region of cytoplasm. Is expressed in several structures, including alimentary system; central nervous system; liver; sensory organ; and spleen. Used to study spinocerebellar ataxia type 2. Human ortholog(s) of this gene implicated in late onset Parkinson's disease and spinocerebellar ataxia type 2. Orthologous to human ATXN2 (ataxin 2). [provided by Alliance of Genome Resources, Apr 2022]