Required for meiosis I segmentation (PubMed:2123556). Probably acts as a regulator of kinetochore function during meiosis I: required both for mono-orientation of kinetochores on sister chromosomes and protection of centromeric cohesin from separase-mediated cleavage (PubMed:25533956). {ECO:0000269|PubMed:2123556; ECO:0000305|PubMed:25533956}.