This domain of unknown function is found in fungal proteins including Mug8 from Schizosaccharomyces pombe which may have a role in meiosis and septation. Saccharomyces cerevisiae homolog MSB1 (swiss:P21339) may be involved in positive regulation of 1,3-beta-glucan synthesis and the Pkc1p-MAPK pathway.
Jiyao W et al.(2023). "The conserved domain database in 2023.",