Probable transcription regulator that acts as a developmental regulator by promoting cell growth in response to light (By similarity). Transcription regulator that restrains empty glumes growth, lemmas of the sterile florets located at the lateral side of the rice spikelet, to maintain their small size, probably by repressing lemma identity via transcription regulation. Expressed at the empty glumes of immature spikelets, which are lemmas of the sterile florets located at the lateral side of the spikelet, throughout their development. Enlarged sterile lemma in florets of the spikelet, caused by homeotic transformation of the sterile lemma into a lemma. Elongated empty glumes, which mimic the lemmas and have the epidermal morphology of lemmas with four or five vascular bundles. Belongs to the plant homeotic and developmental regulators ALOG protein family.