Probable transcription factor required for the expression of a subset of genes involved in interneurons migration and development. Functions in the specification of cortical interneuron subtypes and in the migration of GABAergic interneuron precursors from the subpallium to the cerebral cortex. Interacts with LDB1 (via the LIM zinc-binding domains). Brain specific. Expressed by neurons in the amygdala that are activated by reproductive olfactory stimuli and project in regions of the hypothalamus involved in reproduction (at protein level). Specifically expressed during brain maturation from 14.5 dpc to P2 by a subset of tangentially migrating interneurons. Barely detectable in adult brain. Isoform 1 expression peaks at P2 and remains high in adulthood compared to isoform 2. Expressed in preoptic area, hypothalamic regions and the first branchial arch at 9.5 dpc. Expressed uniformly in the odontogenic mesenchyme of the first branchial arch prior to initiation of tooth development. During odontogenesis expression is restricted to the mesenchyme participating in the formation of individual teeth. Expressed in olfactory bulb, arcuate nucleus, medial glanglionic eminence and preoptic area at 13.5 dpc and 14.5 dpc. Expression spread to the cortex and hippocampus at P1.0. Preferentially expressed in parvalbumin or somatostatin positive cortical interneurons. Mice lacking Lhx6 fail to thrive, develop general weakness and die within the first 2 weeks after birth. Several sequencing errors.