Impaired social facilitation on voluntary exercise of BALB/cCrSlc mice, a proposed as an autism spectrum disorder model

•A novel breeding home cage for social facilitation and observational learning.•Increased voluntary exercise of C57BL/6 J mice in the presence of observer mice.•Not increased voluntary exercise of BALB/cCrSlc mice in the presence of observer mice.•Not increased voluntary exercise due to observation experience.