Predicted to enable RNA binding activity. Predicted to be involved in maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA); maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA); and regulation of cell cycle. Predicted to act upstream of or within several processes, including nucleolus organization; protein localization to organelle; and rRNA processing. Predicted to be located in condensed chromosome; cytosol; and nuclear lumen. Predicted to be part of PeBoW complex and preribosome, large subunit precursor. Orthologous to human PES1 (pescadillo ribosomal biogenesis factor 1). [provided by Alliance of Genome Resources, Apr 2022]