Predicted to enable several functions, including DNA topoisomerase binding activity; antigen binding activity; and ubiquitin-like protein transferase activity. Acts upstream of or within intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator; positive regulation of transcription, DNA-templated; and regulation of cell population proliferation. Located in ciliary basal body; nucleus; and photoreceptor connecting cilium. Is expressed in skin. Human ortholog(s) of this gene implicated in retinitis pigmentosa 31. Orthologous to human TOPORS (TOP1 binding arginine/serine rich protein, E3 ubiquitin ligase). [provided by Alliance of Genome Resources, Apr 2022]