Predicted to enable several functions, including ATP binding activity; DNA helicase activity; and hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides. Predicted to be involved in nucleobase-containing compound metabolic process. Is an ortholog of C. elegans rtel-1. In C. elegans, rtel-1 is involved in regulation of double-strand break repair via homologous recombination.