Plays an important role in chromosome segregation during meiosis I by allowing meiotic rec8 to establish cohesion at the centromeric central core and thereby promote the side-by-side structure of kinetochores at meiosis I. Enables monopolar attachment during meiosis I (PubMed:16303567; PubMed:16325576). Required to facilitate kinetochore mono-orientation during meiosis I; when kinetochores on sister chromosomes face the same direction and are thus captured and pulled by spindle fibers from the same pole (PubMed:25533956). Acts in collaboration with plo1 (PubMed:25533956). {ECO:0000269|PubMed:16303567; ECO:0000269|PubMed:16325576; ECO:0000269|PubMed:25533956}.