ATPase required during meiosis for the formation of crossover recombination intermediates (By similarity). Binds DNA: preferentially binds to single-stranded DNA and DNA branched structures (PubMed:29742103). Does not show nuclease activity in vitro, but shows ATPase activity, which is stimulated by the presence of single-stranded DNA (PubMed:29742103). Plays a key role in homologous recombination and crossing-over in meiotic prophase I in male and female germ cells (By similarity). Requiref for recruitment TEX11 and MSH4 to recombination intermediates (By similarity). Interacts with TEX11 (PubMed:29742103). Interacts with SPO16 (By similarity). Localizes to meiotic chromosomes; associates with mid-stage meiotic recombination intermediates. Localization requires meiotic double-strand breaks (DSBs) recombination intermediates catalyzed by DMC1. Belongs to the XPF family. Highly divergent. Although related to the XPF family, the nuclease active site is not conserved.