Transcriptional repressor that functions with ULT1 in a pathway which regulates floral meristem homeostasis and organ number in the flower. Binds specifically to the DNA sequence motif 5'-GTAGATTCCT-3' of WUS promoter, and may be involved in direct regulation of WUS expression. Binds specifically to the DNA sequence motif 5'-AAGAATCTTT-3' found in the promoters of AG and the NAC domain genes CUC1, CUC2 and CUC3, and may be involved in direct regulation of these gene expressions. Interacts with ULT1. Localizes in cytosolic foci. Expressed in roots, inflorescence apex, floral primordia, stamen primordia, carpel primordia and ovules. Increased number of sepals and petals in flowers. Loss of organ boundary and identity, producing fused sepals, petaloid stamens and branching stamens fused along the filament. Sequencing errors.