Predicted to enable identical protein binding activity. Acts upstream of or within negative regulation of cell population proliferation; positive regulation of protein ubiquitination; and regulation of protein localization to nucleus. Located in nucleus. Is expressed in heart and thymus primordium. Used to study systemic lupus erythematosus. Orthologous to human RASSF5 (Ras association domain family member 5). [provided by Alliance of Genome Resources, Apr 2022]