Predicted to enable 3'-5' RNA helicase activity; mRNA binding activity; and single-stranded RNA binding activity. Predicted to be involved in mRNA splicing, via spliceosome. Predicted to act upstream of or within RNA splicing and mRNA processing. Predicted to be located in nucleoplasm. Predicted to be part of U2-type catalytic step 2 spliceosome. Orthologous to human AQR (aquarius intron-binding spliceosomal factor). [provided by Alliance of Genome Resources, Apr 2022]