Involved in the regulation of root gravitropism (PubMed:27748769). Functions redundantly with LAZY3 and LAZY4 in the control of root gravitropism (PubMed:27748769). Functions redundantly with LAZY1, LAZY3 and LAZY4 to control plant architecture by coupling gravity sensing to the formation of auxin gradients (PubMed:28821594). Involved redundantly with LAZY1 and LAZY4 in the regulation of both shoot and root gravitropism (PubMed:28765510). Mediates gravity signaling in statocytes downstream of amyloplast displacement, leading to the generation of asymmetric auxin distribution in gravity-responding organs (PubMed:28765510). Regulates the direction of polar auxin transport in response to gravity through the control of asymmetric PIN3 expression in the root cap columella (PubMed:28765510). Regulation of auxin flow by the three proteins LAZY1, LAZY2 and LAZY4 in statocytes influences plant architecture by controlling the growth angle of lateral shoots and lateral roots (PubMed:28765510). Expressed in the endodermis of inflorescence stems and hypocotyls (PubMed:28765510). Highly expressed in hypocotyls and root tips of young seedlings (PubMed:28821594). No visible phenotype under normal growth conditions (PubMed:27748769). Roots of plants lacking LAZY2, LAZY3 and LAZY4 exhibit a negative gravitropic response, and grow upward in the opposite direrction of root gravitropism (PubMed:27748769). Belongs to the LAZY family.