Predicted to enable RNA binding activity; RNA polymerase II C-terminal domain phosphoserine binding activity; and protein C-terminus binding activity. Predicted to be involved in mRNA processing and negative regulation of termination of RNA polymerase II transcription, poly(A)-coupled. Predicted to be located in nucleoplasm. Is expressed in several structures, including alimentary system; genitourinary system; nervous system; respiratory system; and sensory organ. Orthologous to human SCAF4 (SR-related CTD associated factor 4). [provided by Alliance of Genome Resources, Apr 2022]