Predicted to enable 5S rRNA binding activity. Predicted to be involved in several processes, including mitotic metaphase plate congression; protein localization to nucleolus; and ribosome biogenesis. Predicted to act upstream of or within hematopoietic progenitor cell differentiation. Predicted to be located in condensed nuclear chromosome; endoplasmic reticulum; and nucleoplasm. Predicted to be part of preribosome, large subunit precursor. Predicted to be active in nucleolus. Orthologous to human RRS1 (ribosome biogenesis regulator 1 homolog). [provided by Alliance of Genome Resources, Apr 2022]