Binds to the LIM domain of a wide variety of LIM domain-containing transcription factors. Interacts with LHX9 (By similarity). Interacts with SLK; leading to negatively regulate SLK kinase activity (By similarity). Ubiquitinated by RLIM/RNF12, leading to its degradation by the proteasome. Lacks LIM-binding domain. Belongs to the LDB family.