Plays a continuous role in plant development probably in the structural organization of compartments. Binds 2 Zn(2+) ions per monomer. Homodimer. A number of isoforms are produced. According to EST sequences. Roots, shoots, flowers, siliques and cotyledons. A heat shock at 35 degrees Celsius for 5 hours resulted in a 5-fold increase in levels. Farnesylated. Belongs to the DnaJ family. A/I subfamily.