Component of the large ribosomal subunit (PubMed:24930395). Required for proper rRNA processing and maturation of 28S and 5.8S rRNAs (By similarity). Component of the large ribosomal subunit (PubMed:24930395). Interacts with RRP1B (By similarity). Component of the large ribosomal subunit. Interacts with RRP1B. Interacts with DHX33 (By similarity). Detected on cytosolic polysomes (By similarity). Detected in ribosomes that are associated with the rough endoplasmic reticulum (PubMed:24930395). Belongs to the eukaryotic ribosomal protein eL27 family.