This is a family of unknown function found in Bacteria. Some family members are thought to be transposases [1].

1: New Insights into the Classification and Integration Specificity of Streptococcus Integrative Conjugative Elements through Extensive Genome Exploration. Ambroset C, Coluzzi C, Guedon G, Devignes MD, Loux V, Lacroix T, Payot S, Leblond-Bourget N; Front Microbiol. 2016;6:1483. PMID:26779141