Required for formation of the rec12-mediated double-strand breaks (DSBs) that initiate meiotic recombination (PubMed:10882124). May be involved primarily in the early steps of meiotic recombination (Probable). Component of the DSB catalytic core (DSBC) complex, composed of at least rec12, rec6 and rec14. The complex interacts with mde2. Most abundant at 2 hours after induction of meiosis, at the time of premeiotic DNA synthesis. Found at much lower levels before and after this time. Despite weak sequence similarities, may correspond to the subunit B of a rec12-containing topoisomerase 6 complex specifically required for meiotic recombination. Retains some of the structural features of the ancestral archaeal Top6B subunit (AC O05207). Belongs to the TOP6B-like family.