Involved in flowering time control. Binds DNA and RNA in vitro. Interacts (via N-terminus) with SPL11. Expressed in roots, stems, leaves and panicles. Circadian-regulated, with a peak in expression in the middle of the day under long day conditions, and from the middle of the day until night under short day conditions. Ubiquitinated by SPL11. Ubiquitination probably leads to its subsequent degradation, thus negatively regulating flowering time control.