No. Tiguin can support central authentication, but apart from centralised authentication, Active Directory provides lots of support and configuration options, which are not available for Tiguin (or that matter any other Linux distro)
We have to understand that Active Directory is a fantastic way to manage Windows desktops and Windows Users. It cannot be used to manage Linux Desktops.
Further, Enjay Tiguin Supports Centralised Authentication System, which can be configured. Configuration / consultancy charges apply.
Please feel free to get in touch with Enjay's Support Team to understand the concepts very well.