Predicted to enable rRNA binding activity. Predicted to be involved in ribosomal large subunit assembly. Predicted to be active in nucleolus. Is expressed in several structures, including Malpighian tubule primordium; embryonic/larval midgut primordium; larval muscle cell; somatic trunk mesoderm derivative; and trunk visceral muscle primordium. Orthologous to human BRIX1 (biogenesis of ribosomes BRX1).