Involved in the control of mitochondrial and peroxisomal division and morphology. Interacts with ARC5 on peroxisomes and ELM1 on mitochondria. Reduced plant growth. Increase in the size of peroxisomes and decrease in the number of peroxisomes per cell. May be due to an intron retention. Belongs to the TRAFAC class dynamin-like GTPase superfamily. Dynamin/Fzo/YdjA family.