Probable E3 SUMO-protein ligase RNF212 (RNF212)

SUMO E3 ligase that serves as a regulator of crossing-over during meiosis: needed to couple chromosome synapsis to the formation of crossover-specific recombination complexes. Localizes to recombination sites and stabilizes meiosis-specific recombination factors, such as MutS-gamma complex proteins (MSH4 and MSH5) and TEX11.

May mediate sumoylation of target proteins MSH4 and/or MSH5, leading to enhance their binding to recombination websites. Acts as a limiting factor for crossover designation and/or reinforcement and plays an antagonist part with CCNB1IP1/HEI10 in the regulation of meiotic recombination (By similarity).