Predicted to be involved in negative regulation of double-strand break repair via homologous recombination; positive regulation of double-strand break repair via nonhomologous end joining; and positive regulation of isotype switching. Predicted to be located in actin cytoskeleton; chromosome; and nucleoplasm. Predicted to be active in nucleus and site of double-strand break. Orthologous to human SHLD2 (shieldin complex subunit 2).