Is predicted to encode a protein with the following domains: Wings apart-like protein regulation of heterochromatin; Armadillo-type fold; Wings apart-like protein, C-terminal; Wings apart-like protein; and Armadillo-like helical. Is an ortholog of C. elegans wapl-1. In C. elegans, wapl-1 is involved in positive regulation of double-strand break repair via homologous recombination.