phototropic-responsive NPH3 family protein. similar to phototropic-responsive NPH3 family protein [Arabidopsis thaliana] (TAIR:AT1G30440.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO16706.1); similar to putative non-phototropic hypocotyl 3-like protein [Ipomoea trifida] (GB:AAS79592.1); contains InterPro domain NPH3; (InterPro:IPR004249); contains InterPro domain BTB/POZ fold; (InterPro:IPR011333); contains InterPro domain BTB/POZ-like; (InterPro:IPR000210)