Polycomb group (PcG) protein. PcG proteins act by forming multiprotein complexes, which are required to maintain the transcriptionally repressive state of homeotic genes throughout development. PcG proteins are not required to initiate repression, but to maintain it during later stages of development. They act via the methylation of histones, rendering chromatin heritably changed in its expressibility (Probable). Polycomb group (PcG) protein involved in the repression of flowering under long day (LD) conditions. Regulates floret development (PubMed:19825651). Component of the polycomb repressive complex 2 (PRC2), composed of the core PRC2 components FIE2, EZ1 and CLF. PRC2 methylates 'Lys-27' residues of histone H3 (H3K27me3), leading to transcriptional repression of the affected target gene. Widely expressed. Dwarf phenotype with early flowering under long day (LD) conditions. Defect in floret development. Belongs to the VEFS (VRN2-EMF2-FIS2-SU(Z)12) family. Extended N-terminus. Extended N-terminus.