Transposase-like protein that is essential for plant growth and development. Binds the promoter region of the DNA helicase KU70 and genes involved in chromatin remodeling. May regulate global gene expression by recruiting other cellular factors. Homodimer. Very slow growth and absence of expansion of cotyledons or development of normal leaves or floral organs. Short root with an excess of abnormal root hairs. Extremely rare production of some photosynthetic tissue.