Predicted to enable transcription coactivator activity. Involved in negative regulation of GTPase activity and regulation of RNA splicing. Located in euchromatin; heterochromatin; and nucleus. Is expressed in several structures, including alimentary system; genitourinary system; nervous system; sensory organ; and sternum. Orthologous to human RRP1B (ribosomal RNA processing 1B). [provided by Alliance of Genome Resources, Apr 2022]