Enables RNA binding activity. Predicted to act upstream of or within ribosome biogenesis. Predicted to be located in fibrillar center. Predicted to be part of box C/D RNP complex; pre-snoRNP complex; and small-subunit processome. Is expressed in alimentary system; central nervous system; liver; metanephros; and retina nuclear layer. Human ortholog(s) of this gene implicated in spinocerebellar ataxia type 36. Orthologous to human NOP56 (NOP56 ribonucleoprotein). [provided by Alliance of Genome Resources, Apr 2022]