Required for proper 34S pre-rRNA processing and 60S ribosome subunit assembly. Monomer. Interacts with pre-ribosome complex. May bind to RNA. Interacts with NOL8. Interacts with FTSJ3 (By similarity). Expressed in muscle, heart, liver, fat, kidney and lung. Weakly expressed in small intestine, ovary and spleen. Belongs to the NIP7 family.