Transports the metallophore pseudopaline, which is involved in the acquisition of nickel and zinc, and thus enables bacterial growth inside the host, where metal access is limited. Is probably involved in the export of pseudopaline (By similarity). Essential for iron acquisition during the interaction with airway mucus secretions (AMS) (PubMed:26446565). Is part of the operon cntOLMI that is negatively regulated by zinc level through the Zur repressor, which leads to transcriptional activation of this operon under zinc depletion (PubMed:28898501). Highly induced in response to airway mucus secretions (AMS) treatment (PubMed:26446565). The deletion mutant is susceptible to treatment with AMS and shows decreased intracellular iron content after incubation with AMS. In vivo virulence of the mutant is attenuated. Belongs to the EamA transporter family.