Predicted to enable 5S rRNA binding activity; identical protein binding activity; and p53 binding activity. Involved in negative regulation of signal transduction by p53 class mediator; positive regulation of proteasomal ubiquitin-dependent protein catabolic process; and protein localization to nucleolus. Located in nucleolus. Is expressed in nucleus pulposus. Orthologous to human NOP53 (NOP53 ribosome biogenesis factor). [provided by Alliance of Genome Resources, Apr 2022]