During meiotic DNA recombination, binds to and may help activate DNA double-strand break (DSB) hotspot sites. Component of linear elements (LinEs), which are similar to synaptonemal complexes, at least composed of rec27, rec25, rec10 and mug20 (PubMed:23395004). Interacts with rec10 (PubMed:19756689). Localizes to chromosomal double-strand break (DSB) hotspot sites during the meiotic cell cycle. Up-regulated during meiosis (PubMed:16303567). Present from pre-meiotic DNA replication and disappears following meiotic prophase I (PubMed:23395004, PubMed:33825974). Abnormal linear element formation (PubMed:33825974, PubMed:23395004). Decreases meiotic gene conversion at ade6 (PubMed:23395004). Decreases crossing-over between ade6 and arg1, and lys4 and his4 (PubMed:23395004). Abnormal sporulation (PubMed:33825974).