This is a family of plant transcription factors with various roles in development, the aligned region corresponds the B3 DNA binding domain as described in [1] this domain is found in VP1/AB13 transcription factors [2]. Some proteins also have a second AP2 DNA binding domain Pfam:PF00847 such as RAV1 Swiss:Q9ZWM9 [1]. DNA binding activity was demonstrated by [3].

1: RAV1, a novel DNA-binding protein, binds to bipartite recognition sequence through two distinct DNA-binding domains uniquely found in higher plants. Kagaya Y, Ohmiya K, Hattori T; Nucleic Acids Res 1999;27:470-478. PMID:9862967

2: ARF1, a transcription factor that binds to auxin response elements. Ulmasov T, Hagen G, Guilfoyle TJ; Science 1997;276:1865-1868. PMID:9188533

3: The conserved B3 domain of VIVIPAROUS1 has a cooperative DNA binding activity. Suzuki M, Kao CY, McCarty DR; Plant Cell 1997;9:799-807. PMID:9165754