Part of a signaling pathway that initiates the aggregation and leads to the formation of aggregation centers or streams. Not essential for cytokinesis, pinocytosis or phagocytosis. Not essential for development, except in starvation-induced aggregation.
Internal capsid protein that is probably ejected along with the viral DNA and prevents degradation of viral DNA by the host type I restriction-modification antiviral defense system (PubMed:3029954). Plays a role in directing proper capsid assembly (PubMed:28509398).
Binds cyclic di-AMP (c-di-AMP) and is probably involved in c-di-AMP-mediated signaling pathways. In vitro, can also bind cyclic GMP-AMP (3'3'-cGAMP), with lower affinity, but not c-di-GMP or 2'3'-cGAMP.