Predicted to enable several functions, including enzyme binding activity; proteasome binding activity; and ubiquitin binding activity. Acts upstream of or within cellular response to DNA damage stimulus. Predicted to be located in centriolar satellite; cytoplasm; and nucleus. Predicted to be part of protein-containing complex. Predicted to be active in cytosol and nucleoplasm. Is expressed in brain and liver. Orthologous to human RAD23A (RAD23 homolog A, nucleotide excision repair protein). [provided by Alliance of Genome Resources, Apr 2022]