Predicted to be part of U2-type spliceosomal complex and post-mRNA release spliceosomal complex. Orthologous to human CCDC12 (coiled-coil domain containing 12); PARTICIPATES IN spliceosome pathway; INTERACTS WITH 17alpha-ethynylestradiol; 2,3,7,8-tetrachlorodibenzodioxine; bisphenol A.