Ranked Matches do not take skill effects or your Group's Talent into account, and therefore these will not be activated.
However, your Group will affect Event Bonuses, and Character Ranks, Trust Ranks, cleared missions and such.
The pause function will not be available in Ranked Matches, nor will SUPER FEVER or cut-in effects activate.
Furthermore, scores are calculated differently in Ranked Matches. For more information, please see "How are wins and losses determined in Ranked Matches?" for details.