Enables integrin binding activity. Involved in several processes, including elastic fiber assembly; intramembranous bone growth; and regulation of transcription by RNA polymerase II. Acts upstream of or within extracellular matrix organization. Located in extracellular space. Colocalizes with collagen-containing extracellular matrix and elastic fiber. Is expressed in several structures, including alimentary system; cardiovascular system; central nervous system; embryo mesenchyme; and skeleton. Used to study cutis laxa. Human ortholog(s) of this gene implicated in age related macular degeneration; autosomal dominant cutis laxa 2; autosomal recessive cutis laxa type IA; and cutis laxa. Orthologous to human FBLN5 (fibulin 5). [provided by Alliance of Genome Resources, Apr 2022]