Purity > 90% as determined by SDS-PAGE. MW: 30.3kDa. Partial: 451-579aa. N-terminal 6xHis-SUMO-tagged. Bacillus sp. (strain L7). Catalyzes the hydrolysis of levan with endo-type specificity. The products of levan hydrolysis are a mixture of fructose and a series of fructooligosaccharides up to 12-mer, with levantriose being the major oligosaccharide obtained. Is not active towards sucrose.