Probable transcription factor. Required for suppression of cellularization and promotion of nuclear proliferation during early endosperm development. The FERTILIZATION-INDEPENDENT SEED (FIS) polycomb complex is required for suppression of ALG62 expression at the end of the syncytial phase of endosperm development. Interacts with AGL36, PHE1/AGL37, PHE2/AGL38, AGL80, AGL86, AGL90, AGL92 and AGL97. Expressed in the endosperm but not in the embryo. Detected in young siliques, roots, leaves, stems, young flowers and anthers. Expressed during the syncytial endosperm development. Plants lacking AGL62 show a premature endosperm cellularization and a seed-lethal phenotype.